Question

I have a fairly long linq query and everything works as it should.. but in a final join i am doing an innerjoin on a table that has a log, the log returns more than 50 records, i just want the latest record..

Here is an example

var tst = from w in context.storage
          join p in context.products on w.id equals p.wid
          join l in context.logger on p.id equals l.pid
          select new
          {
              storageid = w.id,
              productid = p.id
              productname = p.name
              bought = l.when
          };

So a quick explanation of what happens, each product is stored in a storage center and there is a log when that product was bought, if it was bought 100 times then there is 100 records in the logger.

So currently it returns 50 records for productid = 5 … why .. because it was bought 50 times but i only want 1 record, hence i only want the latest date time for from the logger.

Can anyone help? I am a little stuck.

Answer 1

Use result.Distinct(x => x.Prop) to get unique entries only

Use result.Max(x => x.Prop) to get latest date, and Min() to get earliest.